What is the stitch in the ditch? Is this what it is...
Once you "birth" a quilt, if thats how your doing it and you make sure that all the corners are okay, is it where you stitch with your machine as close to the edges all around the quilt?

when you press seams to one side (not open) the side of the seam that is one layer of fabric on the top, batting and back is "in the ditch". Makes an almost invisible stitch as it is close to the actual stitching of the seam and gives stability. Used when needing quilting but doesn't really call for decorative designs yet needs quilting